Article
Chemistry, Multidisciplinary
Xin Zhou, Taizhi He, Yinkui Jiang, Suichao Chang, Yang Yu, Xiangchen Fang, Yan Zhang
Summary: A green poly(butylene succinate) (PBS)-lignin gel compatibilizer with a novel network structure was synthesized successfully for the first time via dicumyl peroxide (DCP) initiating free radical grafting of PBS and lignin during melt extrusion. The mechanical properties of the gel compatibilizer were greatly affected by the concentration of DCP, leading to improvements in the elongation at break and tensile strength of the resulting alloys. The study demonstrated enhanced compatibility and mechanical properties in lignin-based biodegradable materials using the gel compatibilizer.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Engineering, Chemical
Huiwen Yu, Zhongwen Zhao, Baiping Xu, Guo-Hua Hu, Cecile Lemaitre, Yanhong Feng
Summary: This study investigates the residence time distribution (RTD) and flow patterns in an asymmetrical twin-screw extruder (ATSE) through visualizing the process using a transparent barrel. The results show that the mean residence time (t) in the ATSE is larger than that in a classical TSE, indicating the occurrence of backflow in the intermeshing regions between the low flight and the inner wall of the barrel.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Erfan Kimiaei, Muhammad Farooq, Rafael Grande, Kristoffer Meinander, Monika Osterberg
Summary: This study proposes a method to produce multifunctional nanocomposite films using cellulose nanofibrils (CNFs), lignin, and polycaprolactone (PCL) through a Pickering emulsion approach. By utilizing colloidal lignin nanoparticles (CLPs) as the emulsion stabilizer, the dry and wet strength of the CNF-PCL nanocomposite films are significantly improved, and their protection against UV and oxidation is enhanced by increasing the CLPs content.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Polymer Science
Ying Xu, Bowen Liu, Lulu Zheng, Yunxia Zhou, Hisham Essawy, Xinyi Chen, Xiaojian Zhou, Jun Zhang
Summary: Given that tree extracts such as tannin and lignin can be efficiently used as modifying materials, a bio-based biodegradable composite film (TLP) incorporating tannin and lignin as additives, together with polyvinyl alcohol (PVOH) as a matrix, was prepared. The film displayed a smooth surface without pores or cracks, and the addition of tannin and lignin improved its tensile strength. This enhancement was attributed to the weakening of hydrogen bonding in the PVOH film due to the chemical interactions between tannin, lignin, and PVOH. Furthermore, the TLP film exhibited good resistance against UV and visible light and showed biodegradability when contaminated with Penicillium sp.
Article
Polymer Science
Fatimah Athiyah Sabaruddin, M. T. Paridah, S. M. Sapuan, R. A. Ilyas, Seng Hua Lee, Khalina Abdan, Norkhairunnisa Mazlan, Adlin Sabrina Muhammad Roseley, H. P. S. Abdul Khalil
Summary: The thermal, thermo-mechanical and flammability properties of kenaf core hybrid polymer nanocomposites reinforced with unbleached and bleached nanocrystalline cellulose were studied. Unbleached NCC had higher lignin content and better stability in thermal and flammability properties compared to bleached NCC. Bleached NCC showed notably lower thermo-mechanical properties in the nanocomposites blend.
Article
Agricultural Engineering
Zhenghong Wu, Xinyu Zhang, Shaomin Kang, Yena Liu, Rani Bushra, Jiaqi Guo, Wenyuan Zhu, Mohammad Rizwan Khan, Yongcan Jin, Junlong Song
Summary: In this study, an environmentally benign blocked lignin-based water-borne polyurethane emulsion was prepared to develop a hydrophobic, translucent, and biodegradable recycled fiber composite film. The film exhibited significantly improved mechanical properties, water stability, UV-blocking properties, and thermal stability compared to the control. The developed composite film has the potential to be used as a green packaging and construction material.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Chemistry, Applied
Zhe Sun, Jiating Wen, Wenkai Wang, Haojun Fan, Yi Chen, Jun Yan, Jun Xiang
Summary: A novel reactive compatibilizer PMHS-g-AEM was synthesized and characterized for its potential in compatibilizing nonpolar PDMS and polar E/SVTPU systems. Optimum dosages of 2 wt% and 4 wt% were found to significantly improve the microstructures and mechanical properties of the blends, demonstrating excellent compatibilization effects.
PROGRESS IN ORGANIC COATINGS
(2021)
Article
Engineering, Manufacturing
Hongyu Meng, Caidan Zhang, Yansong Gai, Qiao Yu, Zhou Li
Summary: The preparation of nanocomposites with controllable structure is important, and the preparation of ultrashort composite nanotubes with core-shell structure from long nanotubes is challenging. Researchers have successfully prepared ultrashort core-shell composite nanotubes with the outer layer of SiO2 or TiO2 and the inner layer of sulfonated PDVB by mixing their long composite nanotubes with polymer resin and shearing at a high strength with a twin-screw extruder.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Agricultural Engineering
Jiongjiong Li, Xiaona Li, Fudong Zhang, Wei Zhang, Jianzhang Li
Summary: A novel strategy was proposed in this study to design soy protein-based composite films with great toughness and high strength by incorporating a plasticizer, polyethyleneimine, and a green reinforcer, lignin-Ag nanoparticles. The fabricated films showed significantly improved toughness and tensile strength compared to neat glycerol-toughened SP films, along with good biodegradability and excellent UV shielding performance.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Materials Science, Characterization & Testing
R. Muthuraj, M. Hajee, A. R. Horrocks, B. K. Kandola
Summary: Reactive compatibilization using MA and GMA can enhance the compatibility between TcC and PA1010, with MA being more effective but leading to slightly inferior properties of the carbon fibers. Accurate control of stress during thermostabilization and carbonization stages is crucial for optimizing the properties of the compatibilized carbon fibers.
Article
Polymer Science
Raziyeh S. Mohammadi, Ali M. Zolali, Jung-Hyun Kim, Amirjalal Jalali, Chul B. Park
Summary: The melt strength of linear low density polyethylene (LLDPE) can be enhanced through the inclusion of high aspect ratio polyamide (PA) fibers, and the efficiency of this method can be improved by adding compatibilizer to the blends. The presence of compatibilizer in the blends results in finer fibers and superior foaming ability, with comparable rheological responses achieved in both fibrillated blends with and without compatibilizer.
Article
Chemistry, Applied
Muhammad Saeed Ullah, Rumeysa Yildirim, Mehmet Kodal, Guralp Ozkoc
Summary: In this study, multi-epoxide polyhedral oligomeric silsesquioxane (Glycidyl POSS) was added to poly(lactic acid) (PLA) and poly(butylene succinate) (PBS) to improve their compatibility. SEM analysis showed that Glycidyl POSS improved the interfacial adhesion and other properties of PLA and PBS blends, and noticeable improvements in mechanical properties were revealed by tensile and impact test results. FTIR analysis indicated a strong interaction between the epoxide group of POSS and the end groups of PBS or PLA, and DSC and TGA analysis confirmed the enhanced compatibility and thermal stability of the blends.
JOURNAL OF VINYL & ADDITIVE TECHNOLOGY
(2023)
Article
Chemistry, Physical
Siti Aisyah Syazwani Zaidi, Cham Eng Kwan, Denesh Mohan, Shuhaida Harun, Abdullah Amru Indera Luthfi, Mohd Shaiful Sajab
Summary: As additive manufacturing progresses, researchers are looking for ways to enhance the layer-by-layer printing process and improve the mechanical strength of printed objects. One approach being explored is the introduction of lignin in 3D printing filament processing to enhance the interaction between the matrix and filler. This study specifically focuses on using organosolv lignin fillers to reinforce the filament layers, leading to improvements in Young's modulus and interlayer adhesion in 3D printing.
Article
Engineering, Environmental
Ramon Filipe Beims, Amin Rizkalla, Azadeh Kermanshahi-pour, Chunbao Charles Xu
Summary: A reengineering approach is used to develop a high-strength and lightweight bio-composite material by fractionating natural wood into delignified wood (DW) and lignin, synthesizing a lignin-based epoxy resin (LER), and composting DW and LER. The newly developed wood-based composite exhibits improved hydrophobicity, antioxidation, thermal stability, and extraordinary mechanical properties surpassing many metal alloys.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Polymer Science
Jerome Vachon, Derar Assad-Alkhateb, Laura de Araujo Hsia, Jairo h. H. Lora, Stephanie Baumberger
Summary: In this study, Eucalyptus Kraft lignin was blended with two types of polyethylene (low-density and post-consumer recycled) using compatibilizers. The materials were characterized for their thermal, antioxidant, antibacterial, and mechanical properties. The use of compatibilizers enhanced the antioxidant properties and provided good antibacterial properties. However, higher lignin contents led to brittleness and reduced processability. These materials show promise for mulching film application, especially with post-consumer recycled polyethylene.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
